Got an intenral problem with my 2001 LS1, and as luck would have it I have access to a 1999 LS1 block (low 10K miles block but body wrecked !!!)

Anyone know of any problems in swapping the blocks ? Re computer modules need to be swapped too ?? Or anything else. This is a cheaper route that getting the 2001 stripped and repaired..

Anything I should take off the 2001, intake manifold (LS6 I believe) ?

I have posted else where and have concluded I should use the 2001
ECM
Intake manifold
Exhaust manifold
Injectors.

I have had a workshop manual on order, here in the UK for 10months !!!! so may be back here for further advice, such as manifold torque settings (one to start with)

If anyone can add any useful advice, tips or comments, It would be much appreciated. Anything I should do why the blocks are out, add anything ?

thanks in advance.....